Finding the Fourth Proportional to 1,121,045.07, 1,547,033.69 and 637,609.62
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Solution
The fourth proportional to 1,121,045.07, 1,547,033.69 and 637,609.62 is: 879,896.43
Step by Step Solution
- Step 1: Write the proportion equation
1,121,045.07 : 1,547,033.69 = 637,609.62 : x - Step 2: Convert to fraction form
1,121,045.07/1,547,033.69 = 637,609.62/x - Step 3: Cross multiply
1,121,045.07x = 1,547,033.69 × 637,609.62 - Step 4: Simplify right side
1,121,045.07x = 986,403,560,020.05 - Step 5: Solve for x
x = 986,403,560,020.05/1,121,045.07 - Step 6: Final answer
x = 879,896.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.